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Updated: May 27, 2025
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Anticancer Efficacy of Photodynamic Therapy with Lung Cancer-Targeted Nanoparticles
Published on: December 1, 2016
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Enhancing antitumour immunity with photodynamic therapy
Pål Kristian Selbo1, Mladen Korbelik2
1Department of Radiation Biology, Institute for Cancer Research, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway. paasel@ous-hf.no.
Summary
Photodynamic therapy (PDT) can activate systemic anti-tumor immunity. Combining PDT with other treatments like vaccines or immunotherapy significantly enhances its anti-tumor effects, offering new cancer treatment strategies.
Area of Science:
- Oncology
- Immunology
- Photomedicine
Background:
- Photodynamic therapy (PDT) has been recognized for over 30 years for its ability to induce significant immune responses within tumors.
- Recent research highlights PDT as an immunogenic antitumor modality with potential for cancer immunotherapy.
Purpose of the Study:
- To present and discuss pre-clinical and clinical evidence of PDT's ability to induce systemic anti-tumor immunity.
- To explore the enhanced anti-tumor efficacy of PDT when combined with other treatment modalities.
- To outline future directions and challenges in PDT-based cancer immunotherapy.
Main Methods:
- Review and synthesis of pre-clinical studies on PDT and anti-tumor immunity.
- Analysis of clinical studies investigating PDT in combination with vaccines or immune checkpoint inhibitor (ICI) therapy.
- Perspective on the immunogenic mechanisms of PDT and its combination therapies.
Main Results:
- Local PDT alone can stimulate a systemic anti-tumor immune response.
- Combining PDT with vaccines or ICI therapy significantly enhances anti-tumor efficacy.
- PDT-induced tumor tissue injury may act as an in situ vaccination effect.
Conclusions:
- PDT is a potent immunogenic modality with significant potential in cancer immunotherapy.
- Combination strategies involving PDT are crucial for maximizing anti-tumor immune responses.
- Further research is needed to address challenges and optimize PDT-based immunotherapy approaches.
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